./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product06.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bffbc35-8be9-417b-ac51-840f7b15f9c6/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bffbc35-8be9-417b-ac51-840f7b15f9c6/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bffbc35-8be9-417b-ac51-840f7b15f9c6/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bffbc35-8be9-417b-ac51-840f7b15f9c6/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product06.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bffbc35-8be9-417b-ac51-840f7b15f9c6/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bffbc35-8be9-417b-ac51-840f7b15f9c6/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fd1c1c796b8250cbf231dbc704ae45a744144aa0430ce583780a644c1bb59bd9 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 01:50:51,796 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 01:50:51,861 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bffbc35-8be9-417b-ac51-840f7b15f9c6/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Termination-32bit-Automizer_Default.epf [2023-11-29 01:50:51,865 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 01:50:51,866 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 01:50:51,889 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 01:50:51,889 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 01:50:51,890 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 01:50:51,891 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 01:50:51,891 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 01:50:51,892 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 01:50:51,892 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 01:50:51,893 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 01:50:51,893 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-29 01:50:51,894 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-29 01:50:51,894 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-29 01:50:51,895 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-29 01:50:51,895 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-29 01:50:51,896 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-29 01:50:51,896 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 01:50:51,897 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-29 01:50:51,897 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 01:50:51,898 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 01:50:51,898 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 01:50:51,899 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 01:50:51,899 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-29 01:50:51,900 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-29 01:50:51,900 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-29 01:50:51,900 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 01:50:51,901 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 01:50:51,901 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 01:50:51,901 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-29 01:50:51,902 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 01:50:51,902 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 01:50:51,902 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 01:50:51,903 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 01:50:51,903 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 01:50:51,904 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-29 01:50:51,904 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bffbc35-8be9-417b-ac51-840f7b15f9c6/bin/uautomizer-verify-BQ2R08f2Ya/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bffbc35-8be9-417b-ac51-840f7b15f9c6/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fd1c1c796b8250cbf231dbc704ae45a744144aa0430ce583780a644c1bb59bd9 [2023-11-29 01:50:52,118 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 01:50:52,139 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 01:50:52,142 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 01:50:52,143 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 01:50:52,144 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 01:50:52,145 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bffbc35-8be9-417b-ac51-840f7b15f9c6/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/product-lines/minepump_spec2_product06.cil.c [2023-11-29 01:50:54,860 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 01:50:55,064 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 01:50:55,065 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bffbc35-8be9-417b-ac51-840f7b15f9c6/sv-benchmarks/c/product-lines/minepump_spec2_product06.cil.c [2023-11-29 01:50:55,077 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bffbc35-8be9-417b-ac51-840f7b15f9c6/bin/uautomizer-verify-BQ2R08f2Ya/data/b574a3f4a/77e09848bbcb4d66a8996464f3de0a36/FLAGd849cb97a [2023-11-29 01:50:55,089 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bffbc35-8be9-417b-ac51-840f7b15f9c6/bin/uautomizer-verify-BQ2R08f2Ya/data/b574a3f4a/77e09848bbcb4d66a8996464f3de0a36 [2023-11-29 01:50:55,091 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 01:50:55,092 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 01:50:55,093 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 01:50:55,093 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 01:50:55,097 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 01:50:55,098 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 01:50:55" (1/1) ... [2023-11-29 01:50:55,099 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ad21d32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:50:55, skipping insertion in model container [2023-11-29 01:50:55,099 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 01:50:55" (1/1) ... [2023-11-29 01:50:55,146 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 01:50:55,394 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 01:50:55,407 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 01:50:55,418 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [49] [2023-11-29 01:50:55,419 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [87] [2023-11-29 01:50:55,419 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [159] [2023-11-29 01:50:55,420 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [308] [2023-11-29 01:50:55,420 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [389] [2023-11-29 01:50:55,420 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [429] [2023-11-29 01:50:55,420 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [795] [2023-11-29 01:50:55,421 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [804] [2023-11-29 01:50:55,468 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 01:50:55,488 INFO L206 MainTranslator]: Completed translation [2023-11-29 01:50:55,488 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:50:55 WrapperNode [2023-11-29 01:50:55,488 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 01:50:55,489 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 01:50:55,490 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 01:50:55,490 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 01:50:55,497 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:50:55" (1/1) ... [2023-11-29 01:50:55,511 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:50:55" (1/1) ... [2023-11-29 01:50:55,541 INFO L138 Inliner]: procedures = 52, calls = 95, calls flagged for inlining = 48, calls inlined = 52, statements flattened = 328 [2023-11-29 01:50:55,541 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 01:50:55,542 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 01:50:55,542 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 01:50:55,542 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 01:50:55,553 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:50:55" (1/1) ... [2023-11-29 01:50:55,554 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:50:55" (1/1) ... [2023-11-29 01:50:55,556 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:50:55" (1/1) ... [2023-11-29 01:50:55,571 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-29 01:50:55,571 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:50:55" (1/1) ... [2023-11-29 01:50:55,572 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:50:55" (1/1) ... [2023-11-29 01:50:55,578 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:50:55" (1/1) ... [2023-11-29 01:50:55,584 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:50:55" (1/1) ... [2023-11-29 01:50:55,585 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:50:55" (1/1) ... [2023-11-29 01:50:55,587 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:50:55" (1/1) ... [2023-11-29 01:50:55,590 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 01:50:55,591 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 01:50:55,591 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 01:50:55,591 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 01:50:55,592 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:50:55" (1/1) ... [2023-11-29 01:50:55,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 01:50:55,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bffbc35-8be9-417b-ac51-840f7b15f9c6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:50:55,620 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bffbc35-8be9-417b-ac51-840f7b15f9c6/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 01:50:55,629 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bffbc35-8be9-417b-ac51-840f7b15f9c6/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-29 01:50:55,660 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 01:50:55,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 01:50:55,660 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 01:50:55,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 01:50:55,732 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 01:50:55,734 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 01:50:55,986 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 01:50:55,996 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 01:50:55,997 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-29 01:50:55,998 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:50:55 BoogieIcfgContainer [2023-11-29 01:50:55,998 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 01:50:55,999 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-29 01:50:55,999 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-29 01:50:56,002 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-29 01:50:56,003 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-29 01:50:56,003 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 01:50:55" (1/3) ... [2023-11-29 01:50:56,004 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@266b3b1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 01:50:56, skipping insertion in model container [2023-11-29 01:50:56,005 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-29 01:50:56,005 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:50:55" (2/3) ... [2023-11-29 01:50:56,005 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@266b3b1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 01:50:56, skipping insertion in model container [2023-11-29 01:50:56,005 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-29 01:50:56,005 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:50:55" (3/3) ... [2023-11-29 01:50:56,007 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product06.cil.c [2023-11-29 01:50:56,064 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-29 01:50:56,065 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-29 01:50:56,065 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-29 01:50:56,065 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-29 01:50:56,065 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-29 01:50:56,065 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-29 01:50:56,065 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-29 01:50:56,066 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-29 01:50:56,070 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 104 states, 103 states have (on average 1.3592233009708738) internal successors, (140), 103 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:50:56,094 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 65 [2023-11-29 01:50:56,094 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 01:50:56,095 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 01:50:56,102 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:50:56,102 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:50:56,102 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-29 01:50:56,103 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 104 states, 103 states have (on average 1.3592233009708738) internal successors, (140), 103 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:50:56,110 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 65 [2023-11-29 01:50:56,110 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 01:50:56,110 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 01:50:56,111 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:50:56,111 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:50:56,117 INFO L748 eck$LassoCheckResult]: Stem: 22#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~methAndRunningLastTime~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 28#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret49#1, main_~retValue_acc~9#1, main_~tmp~6#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~6#1;assume { :begin_inline_select_helpers } true; 17#select_helpers_returnLabel#1true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 87#select_features_returnLabel#1true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 73#valid_product_returnLabel#1true main_#t~ret49#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~6#1 := main_#t~ret49#1;havoc main_#t~ret49#1; 15#L888true assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true; 56#setup_returnLabel#1true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 85#__utac_acc__Specification2_spec__1_returnLabel#1true assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_#t~nondet8#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 77#L103-2true [2023-11-29 01:50:56,118 INFO L750 eck$LassoCheckResult]: Loop: 77#L103-2true assume !false; 14#L104true assume test_~splverifierCounter~0#1 < 4; 13#L105true havoc test_#t~nondet5#1;test_~tmp~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 90#L113true assume !(0 != test_~tmp~0#1); 34#L113-2true havoc test_#t~nondet6#1;test_~tmp___0~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 16#L123true assume !(0 != test_~tmp___0~0#1); 29#L123-2true havoc test_#t~nondet7#1;test_~tmp___2~0#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1; 89#L133true assume !(0 != test_~tmp___2~0#1);havoc test_#t~nondet8#1;test_~tmp___1~0#1 := test_#t~nondet8#1;havoc test_#t~nondet8#1; 32#L141true assume 0 != test_~tmp___1~0#1; 94#L141-2true assume { :begin_inline_timeShift } true; 6#L175true assume !(0 != ~pumpRunning~0); 64#L175-2true assume !(0 != ~systemActive~0); 104#L182-1true assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret24#1, __utac_acc__Specification2_spec__2_#t~ret25#1, __utac_acc__Specification2_spec__2_~tmp~2#1, __utac_acc__Specification2_spec__2_~tmp___0~1#1;havoc __utac_acc__Specification2_spec__2_~tmp~2#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;isMethaneLevelCritical_~retValue_acc~4#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~4#1; 55#isMethaneLevelCritical_returnLabel#2true __utac_acc__Specification2_spec__2_#t~ret24#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~2#1 := __utac_acc__Specification2_spec__2_#t~ret24#1;havoc __utac_acc__Specification2_spec__2_#t~ret24#1; 88#L408true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~2#1);~methAndRunningLastTime~0 := 0; 72#L408-1true havoc __utac_acc__Specification2_spec__2_#t~ret24#1, __utac_acc__Specification2_spec__2_#t~ret25#1, __utac_acc__Specification2_spec__2_~tmp~2#1, __utac_acc__Specification2_spec__2_~tmp___0~1#1;assume { :end_inline___utac_acc__Specification2_spec__2 } true; 47#timeShift_returnLabel#1true assume { :end_inline_timeShift } true; 77#L103-2true [2023-11-29 01:50:56,124 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:50:56,124 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2023-11-29 01:50:56,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:50:56,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911509785] [2023-11-29 01:50:56,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:50:56,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:50:56,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 01:50:56,248 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 01:50:56,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 01:50:56,284 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 01:50:56,286 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:50:56,287 INFO L85 PathProgramCache]: Analyzing trace with hash 785614284, now seen corresponding path program 1 times [2023-11-29 01:50:56,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:50:56,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56722552] [2023-11-29 01:50:56,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:50:56,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:50:56,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 01:50:56,297 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 01:50:56,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 01:50:56,307 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 01:50:56,309 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:50:56,309 INFO L85 PathProgramCache]: Analyzing trace with hash 49672707, now seen corresponding path program 1 times [2023-11-29 01:50:56,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:50:56,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746733237] [2023-11-29 01:50:56,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:50:56,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:50:56,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:50:56,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:50:56,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:50:56,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746733237] [2023-11-29 01:50:56,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746733237] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:50:56,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:50:56,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 01:50:56,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175552790] [2023-11-29 01:50:56,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:50:56,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:50:56,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:50:56,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:50:56,652 INFO L87 Difference]: Start difference. First operand has 104 states, 103 states have (on average 1.3592233009708738) internal successors, (140), 103 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:50:56,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:50:56,715 INFO L93 Difference]: Finished difference Result 98 states and 123 transitions. [2023-11-29 01:50:56,716 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 98 states and 123 transitions. [2023-11-29 01:50:56,720 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 59 [2023-11-29 01:50:56,725 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 98 states to 88 states and 113 transitions. [2023-11-29 01:50:56,726 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 88 [2023-11-29 01:50:56,727 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 88 [2023-11-29 01:50:56,727 INFO L73 IsDeterministic]: Start isDeterministic. Operand 88 states and 113 transitions. [2023-11-29 01:50:56,728 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:50:56,728 INFO L218 hiAutomatonCegarLoop]: Abstraction has 88 states and 113 transitions. [2023-11-29 01:50:56,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states and 113 transitions. [2023-11-29 01:50:56,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2023-11-29 01:50:56,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 88 states have (on average 1.2840909090909092) internal successors, (113), 87 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:50:56,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 113 transitions. [2023-11-29 01:50:56,756 INFO L240 hiAutomatonCegarLoop]: Abstraction has 88 states and 113 transitions. [2023-11-29 01:50:56,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 01:50:56,760 INFO L428 stractBuchiCegarLoop]: Abstraction has 88 states and 113 transitions. [2023-11-29 01:50:56,761 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-29 01:50:56,761 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 88 states and 113 transitions. [2023-11-29 01:50:56,763 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 59 [2023-11-29 01:50:56,763 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 01:50:56,763 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 01:50:56,764 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:50:56,764 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:50:56,764 INFO L748 eck$LassoCheckResult]: Stem: 281#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~methAndRunningLastTime~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 282#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret49#1, main_~retValue_acc~9#1, main_~tmp~6#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~6#1;assume { :begin_inline_select_helpers } true; 269#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 270#select_features_returnLabel#1 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 268#valid_product_returnLabel#1 main_#t~ret49#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~6#1 := main_#t~ret49#1;havoc main_#t~ret49#1; 260#L888 assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true; 222#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 223#__utac_acc__Specification2_spec__1_returnLabel#1 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_#t~nondet8#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 277#L103-2 [2023-11-29 01:50:56,765 INFO L750 eck$LassoCheckResult]: Loop: 277#L103-2 assume !false; 259#L104 assume test_~splverifierCounter~0#1 < 4; 257#L105 havoc test_#t~nondet5#1;test_~tmp~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1; 258#L113 assume !(0 != test_~tmp~0#1); 225#L113-2 havoc test_#t~nondet6#1;test_~tmp___0~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1; 266#L123 assume !(0 != test_~tmp___0~0#1); 263#L123-2 havoc test_#t~nondet7#1;test_~tmp___2~0#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1; 296#L133 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 297#startSystem_returnLabel#1 assume { :end_inline_startSystem } true; 299#L141-2 assume { :begin_inline_timeShift } true; 230#L175 assume !(0 != ~pumpRunning~0); 231#L175-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret9#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1; 236#L207 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 234#processEnvironment__wrappee__base_returnLabel#2 assume { :end_inline_processEnvironment__wrappee__base } true; 235#L207-1 havoc processEnvironment_#t~ret9#1, processEnvironment_~tmp~1#1;assume { :end_inline_processEnvironment } true; 287#L182-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret24#1, __utac_acc__Specification2_spec__2_#t~ret25#1, __utac_acc__Specification2_spec__2_~tmp~2#1, __utac_acc__Specification2_spec__2_~tmp___0~1#1;havoc __utac_acc__Specification2_spec__2_~tmp~2#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;isMethaneLevelCritical_~retValue_acc~4#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~4#1; 306#isMethaneLevelCritical_returnLabel#2 __utac_acc__Specification2_spec__2_#t~ret24#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~2#1 := __utac_acc__Specification2_spec__2_#t~ret24#1;havoc __utac_acc__Specification2_spec__2_#t~ret24#1; 294#L408 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~2#1);~methAndRunningLastTime~0 := 0; 264#L408-1 havoc __utac_acc__Specification2_spec__2_#t~ret24#1, __utac_acc__Specification2_spec__2_#t~ret25#1, __utac_acc__Specification2_spec__2_~tmp~2#1, __utac_acc__Specification2_spec__2_~tmp___0~1#1;assume { :end_inline___utac_acc__Specification2_spec__2 } true; 265#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 277#L103-2 [2023-11-29 01:50:56,765 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:50:56,765 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2023-11-29 01:50:56,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:50:56,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662364395] [2023-11-29 01:50:56,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:50:56,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:50:56,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 01:50:56,777 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 01:50:56,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 01:50:56,787 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 01:50:56,788 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:50:56,788 INFO L85 PathProgramCache]: Analyzing trace with hash -1878232688, now seen corresponding path program 1 times [2023-11-29 01:50:56,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:50:56,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115353325] [2023-11-29 01:50:56,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:50:56,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:50:56,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 01:50:56,795 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 01:50:56,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 01:50:56,802 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 01:50:56,802 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:50:56,803 INFO L85 PathProgramCache]: Analyzing trace with hash -505707015, now seen corresponding path program 1 times [2023-11-29 01:50:56,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:50:56,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692565848] [2023-11-29 01:50:56,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:50:56,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:50:56,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 01:50:56,815 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 01:50:56,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 01:50:56,831 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 01:50:57,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 01:50:57,836 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 01:50:57,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 01:50:57,891 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 01:50:57 BoogieIcfgContainer [2023-11-29 01:50:57,891 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-29 01:50:57,891 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 01:50:57,892 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 01:50:57,892 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 01:50:57,892 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:50:55" (3/4) ... [2023-11-29 01:50:57,893 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2023-11-29 01:50:57,943 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bffbc35-8be9-417b-ac51-840f7b15f9c6/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-29 01:50:57,943 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 01:50:57,944 INFO L158 Benchmark]: Toolchain (without parser) took 2852.12ms. Allocated memory is still 157.3MB. Free memory was 112.3MB in the beginning and 106.9MB in the end (delta: 5.4MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. [2023-11-29 01:50:57,944 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 113.2MB. Free memory is still 68.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 01:50:57,945 INFO L158 Benchmark]: CACSL2BoogieTranslator took 395.74ms. Allocated memory is still 157.3MB. Free memory was 111.8MB in the beginning and 93.4MB in the end (delta: 18.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-29 01:50:57,945 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.92ms. Allocated memory is still 157.3MB. Free memory was 93.4MB in the beginning and 90.9MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 01:50:57,946 INFO L158 Benchmark]: Boogie Preprocessor took 48.47ms. Allocated memory is still 157.3MB. Free memory was 90.9MB in the beginning and 88.3MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 01:50:57,946 INFO L158 Benchmark]: RCFGBuilder took 407.11ms. Allocated memory is still 157.3MB. Free memory was 87.9MB in the beginning and 70.4MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-29 01:50:57,946 INFO L158 Benchmark]: BuchiAutomizer took 1891.90ms. Allocated memory is still 157.3MB. Free memory was 70.4MB in the beginning and 109.0MB in the end (delta: -38.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 01:50:57,947 INFO L158 Benchmark]: Witness Printer took 52.10ms. Allocated memory is still 157.3MB. Free memory was 109.0MB in the beginning and 106.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 01:50:57,949 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 113.2MB. Free memory is still 68.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 395.74ms. Allocated memory is still 157.3MB. Free memory was 111.8MB in the beginning and 93.4MB in the end (delta: 18.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.92ms. Allocated memory is still 157.3MB. Free memory was 93.4MB in the beginning and 90.9MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.47ms. Allocated memory is still 157.3MB. Free memory was 90.9MB in the beginning and 88.3MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 407.11ms. Allocated memory is still 157.3MB. Free memory was 87.9MB in the beginning and 70.4MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 1891.90ms. Allocated memory is still 157.3MB. Free memory was 70.4MB in the beginning and 109.0MB in the end (delta: -38.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 52.10ms. Allocated memory is still 157.3MB. Free memory was 109.0MB in the beginning and 106.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [49] - GenericResultAtLocation [Line: 87]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [87] - GenericResultAtLocation [Line: 159]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [159] - GenericResultAtLocation [Line: 308]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [308] - GenericResultAtLocation [Line: 389]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [389] - GenericResultAtLocation [Line: 429]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [429] - GenericResultAtLocation [Line: 795]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [795] - GenericResultAtLocation [Line: 804]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [804] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 88 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.8s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 354 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 354 mSDsluCounter, 123 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9 IncrementalHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 118 mSDtfsCounter, 9 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 103]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L167] int pumpRunning = 0; [L168] int systemActive = 1; [L310] int waterLevel = 1; [L311] int methaneLevelCritical = 0; [L391] int methAndRunningLastTime ; [L599] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L805] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L879] int retValue_acc ; [L880] int tmp ; [L884] FCALL select_helpers() [L885] FCALL select_features() [L886] CALL, EXPR valid_product() [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L886] RET, EXPR valid_product() [L886] tmp = valid_product() [L888] COND TRUE \read(tmp) [L890] FCALL setup() [L891] CALL runTest() [L872] CALL __utac_acc__Specification2_spec__1() [L396] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L872] RET __utac_acc__Specification2_spec__1() [L873] CALL test() [L94] int splverifierCounter ; [L95] int tmp ; [L96] int tmp___0 ; [L97] int tmp___1 ; [L98] int tmp___2 ; [L101] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L103] COND TRUE 1 [L105] COND TRUE splverifierCounter < 4 [L111] tmp = __VERIFIER_nondet_int() [L113] COND FALSE !(\read(tmp)) [L121] tmp___0 = __VERIFIER_nondet_int() [L123] COND FALSE !(\read(tmp___0)) [L131] tmp___2 = __VERIFIER_nondet_int() [L133] COND TRUE \read(tmp___2) [L135] CALL startSystem() [L304] systemActive = 1 [L135] RET startSystem() [L148] CALL timeShift() [L175] COND FALSE !(\read(pumpRunning)) [L182] COND TRUE \read(systemActive) [L184] CALL processEnvironment() [L204] int tmp ; [L207] COND FALSE !(\read(pumpRunning)) [L222] FCALL processEnvironment__wrappee__base() [L184] RET processEnvironment() [L190] CALL __utac_acc__Specification2_spec__2() [L401] int tmp ; [L402] int tmp___0 ; [L406] CALL, EXPR isMethaneLevelCritical() [L349] int retValue_acc ; [L352] retValue_acc = methaneLevelCritical [L353] return (retValue_acc); [L406] RET, EXPR isMethaneLevelCritical() [L406] tmp = isMethaneLevelCritical() [L408] COND FALSE !(\read(tmp)) [L424] methAndRunningLastTime = 0 [L190] RET __utac_acc__Specification2_spec__2() [L148] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 103]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L167] int pumpRunning = 0; [L168] int systemActive = 1; [L310] int waterLevel = 1; [L311] int methaneLevelCritical = 0; [L391] int methAndRunningLastTime ; [L599] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L805] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L879] int retValue_acc ; [L880] int tmp ; [L884] FCALL select_helpers() [L885] FCALL select_features() [L886] CALL, EXPR valid_product() [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L886] RET, EXPR valid_product() [L886] tmp = valid_product() [L888] COND TRUE \read(tmp) [L890] FCALL setup() [L891] CALL runTest() [L872] CALL __utac_acc__Specification2_spec__1() [L396] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L872] RET __utac_acc__Specification2_spec__1() [L873] CALL test() [L94] int splverifierCounter ; [L95] int tmp ; [L96] int tmp___0 ; [L97] int tmp___1 ; [L98] int tmp___2 ; [L101] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L103] COND TRUE 1 [L105] COND TRUE splverifierCounter < 4 [L111] tmp = __VERIFIER_nondet_int() [L113] COND FALSE !(\read(tmp)) [L121] tmp___0 = __VERIFIER_nondet_int() [L123] COND FALSE !(\read(tmp___0)) [L131] tmp___2 = __VERIFIER_nondet_int() [L133] COND TRUE \read(tmp___2) [L135] CALL startSystem() [L304] systemActive = 1 [L135] RET startSystem() [L148] CALL timeShift() [L175] COND FALSE !(\read(pumpRunning)) [L182] COND TRUE \read(systemActive) [L184] CALL processEnvironment() [L204] int tmp ; [L207] COND FALSE !(\read(pumpRunning)) [L222] FCALL processEnvironment__wrappee__base() [L184] RET processEnvironment() [L190] CALL __utac_acc__Specification2_spec__2() [L401] int tmp ; [L402] int tmp___0 ; [L406] CALL, EXPR isMethaneLevelCritical() [L349] int retValue_acc ; [L352] retValue_acc = methaneLevelCritical [L353] return (retValue_acc); [L406] RET, EXPR isMethaneLevelCritical() [L406] tmp = isMethaneLevelCritical() [L408] COND FALSE !(\read(tmp)) [L424] methAndRunningLastTime = 0 [L190] RET __utac_acc__Specification2_spec__2() [L148] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2023-11-29 01:50:57,985 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bffbc35-8be9-417b-ac51-840f7b15f9c6/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)